“opening”的概念、定义、翻译、参考文献-科学参考

单词	opening
释义	opening [`ōp·ǝ·niŋ] ^GEOGRAPHY A break in a coastline or a passage between shoals, and so forth. ^{MINING ENGINEERING} 1. A widening of a crevice, in consequence of a softening or decomposition of the adjacent rock, so as to leave a vacant space. 2. A short heading driven between two or more parallel headings or levels for ventilation. 3. An area in a coal mine between pillars, or between pillars and ribs. ^OCEANOGRAPHY Any break in sea ice which reveals the water.
随便看	aa lava Aalenian AAM A AND NOT B gate aapamoor aardvark aardwolf Aaron's rod a axis ab- ABA abac abaca abactinal abacus abaft abalienation abalone abalyn abambulacral abampere abampere centimeter squared abampere per square centimeter abamurus A band

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